| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 4220.0 | USD | 20190401 |
| Unknown | China national standards | MT | 4180.0 | USD | 20190401 |
| Unknown | China national standards | MT | 1060.0 | USD | 20190323 |
| Unknown | China national standards | MT | 640.0 | USD | 20190323 |
| Unknown | China national standards | MT | 620.0 | USD | 20190320 |
| Unknown | China national standards | MT | 4180.0 | USD | 20190320 |
| Unknown | China national standards | MT | 4300.0 | USD | 20190316 |
| Unknown | China national standards | MT | 7140.0 | USD | 20190316 |
| Unknown | China national standards | MT | 7140.0 | USD | 20190316 |
| Unknown | China national standards | MT | 4190.0 | USD | 20190301 |